Hosted meta site linked to main site

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I would like to set up a meta site that shares user information with the "main" site.

E.g., if I start myaskbotpoweredsite.com, I would like to also have meta.myaskbotpoweredsite.com where users can discuss day-to-day site operation, post bugs, request features, etc. Both sites would share login information (so a user could log into the meta site using the same credentials he uses to log into the main site).

Is this possible with Askbot's hosted solution?